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2990797200 = 243252830777
BaseRepresentation
bin1011001001000011…
…1111000110010000
321201102201020110200
42302100333012100
522111121002300
61212435055200
7134054233236
oct26220770620
97642636420
102990797200
1112a5255226
126b5741500
133888117b1
142052cc956
15127877200
hexb243f190

2990797200 has 90 divisors (see below), whose sum is σ = 10378909554. Its totient is φ = 797544960.

The previous prime is 2990797181. The next prime is 2990797211. The reversal of 2990797200 is 27970992.

It can be written as a sum of positive squares in 3 ways, for example, as 85155984 + 2905641216 = 9228^2 + 53904^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 411789 + ... + 418988.

Almost surely, 22990797200 is an apocalyptic number.

2990797200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2990797200 is an abundant number, since it is smaller than the sum of its proper divisors (7388112354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2990797200 is a wasteful number, since it uses less digits than its factorization.

2990797200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830801 (or 830787 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 2990797200 is about 54688.1815386103. The cubic root of 2990797200 is about 1440.7733114923.

The spelling of 2990797200 in words is "two billion, nine hundred ninety million, seven hundred ninety-seven thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 36 40 45 48 50 60 72 75 80 90 100 120 144 150 180 200 225 240 300 360 400 450 600 720 900 1200 1800 3600 830777 1661554 2492331 3323108 4153885 4984662 6646216 7476993 8307770 9969324 12461655 13292432 14953986 16615540 19938648 20769425 24923310 29907972 33231080 37384965 39877296 41538850 49846620 59815944 62308275 66462160 74769930 83077700 99693240 119631888 124616550 149539860 166155400 186924825 199386480 249233100 299079720 332310800 373849650 498466200 598159440 747699300 996932400 1495398600 2990797200